package com.zq.qingzhu.interceptor;

import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 后台系统身份验证拦截器
 */
@Component
public class AdminLoginInterceptor implements HandlerInterceptor {

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
		String uri = request.getRequestURI();
		if (uri.startsWith("/admin") && null == request.getSession().getAttribute("loginUser")) {
			request.getSession().setAttribute("errorMsg", "请登陆");
			response.sendRedirect(request.getContextPath() + "/admin/login");
			return false;
		} else {
			request.getSession().removeAttribute("errorMsg");
			return true;
		}
	}

	@Override
	public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {
	}

	@Override
	public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

	}
}
